Insulation-slab.



-W. C. KAMMERBR.

n INSULATION SLAB. APPLIOATION FILED Mums, 1909.

979,310. f Patented Dec.20, 1910.

Fl'g' Fig. 2. #Hm UM?? ivvvvvvvvvvvwvvvvvvwv 7 000000000@ Qllvmww 1 www ' UNITED sTATEs WILLIAM C. 'KAMMERER, 0F ST. LOUIS, MISSOURI.

INSULATION-SLAB.

Specification of Letters Patent. l Patented Dec. 20,1910.

Application led March 13, 1909. Serial No.'483,2 52.

To all whom it may concern:

`Be it known that I, WILLIAM C. KAM- MERER, a citizen of the United States, residing at the city of St. Louis, State of Missouri, have invented certain new and useful Improvements in Insulation-Slabs, of

which the following is a specification, reference being had therein to the accompanying drawings. y

his invention consists in an improved construction of units'of insulating material, whereby cork blocks or slabs or units of other insulating material can be litted together in such a manner that they form a wall-linin having a plumb and even surface and one o increased insulating efficiency.

It is intended principally to prevent the exit of cold from refrigerated rooms, or the entrance of heat thereinto, but may be utilized for the inverse purpose or to render walls soundroof.

Prior to t is invention, walls havebeen lined with cork board in the form of slabs, it having been customary to use two layers, the joints or` one layer being covered bythe slabs of the other layer, in order to form an insulation that would prevent the' admission of air or sound through the cracks.

'By the present invention, the necessity and expense of two layers is obviated except where double efficiency is desired. In the v old form of construction, it was impossible to construct a lining havin a plumb surface, for the reason that the mortar projecting from between the bricks forms an Irre ilar surface. Acoating of cement' ap.

plie to the inside of such uneven brick wall artook of its irregularities. 'The slabsfof insulating material pressed into said cement formed an uneven lining lsurface because some would sink into the depressions in the cement and in the brick wall, while others could not do so, because of being located opposite a mortar projection.

In the drawings forming part of this specification, in which like' numbers of reference denote like parts wherever they occur, Figure 1 is an elevation of a portion of an insulating lining constructed of the hereindescribed cork-blocks; Fig. 2 is a sectional view of the said lining showing its connection with a brick-wall or the like; Fig. 3 is a pers ective view of the preferred form of: cork-b ook; and Figs. 4, 5, 6, and 7 arcsections of modifications, showing alternative forms of joints. l

`.The cork-blocks or slabs 1 are composed of disintegrated cork in the form of chips and shavings coated with melted resin and pressed into their shape in molds, said blocks or slabs, as depicted lin Fig. 3, f having tongues 2 on two adjacent edges and grooves 3 inthe other two edges. Each of said grooves is of such a shape, depth, and location as to allow a tongue 2 on an adjacent block to enter same and form therewith a perfect joint between adjacent slabs, and, also, to refrister the exposed surface of the blocks in tlie same vertlcal plane. 'lhe said tongues occupying the same relative positionv as the grooves on the edges of ,said slab register therewith, and said slabs being of equal thickness form a wall with an even surface. The'faces of the blocks are provided with depressions 4, which may be arranged in the network or reticulated form shown in the drawings, and which allow the wet Portland cement of the layer 5, on the brick-wall 6, to enter and form a perfect band with said cork units, holding same lirmly in place.

The outer surface of the lining can be covered with plaster 7, as shown in Fig. E2, or any other suitable finishing, or may be left without covering, depending upon the pur ose for which thel room is to be used.

arious other forms of joints may be used without de arting from this inventioinsoiue forms of willich are depicted in the modifications shown in Figs. 4, 5, 6, and 7 It is obvious that the abovedescribed blocks or slabs may be used to a great advantage to lessen the cost of constructing an insulating lining for walls. By reason of the overlapping joints'employed in the construction yherein described as great insulating efficiency is secured as by ythe use o two old-st le layers in which the individual units or s abs in one layer over-lapped tlul cracks between contiguous slabs in the adjoining layer,p,while, if the present construction be employed in a two-layer structure, double insulating eiieiency will be produced.

lluving thus described my invention, what resin and pressed into a, single integral com- ,I claim and desire to secure by Letters-Putponent muss. 10 ent is, In testimony whereof I have 'uixed my As a new article of manufacture, a portsignature in resence of two witnesses. 5 able slab unit for use in the formation of in- WLLIAM C. KAMMERER.

sulating wall linings embod ing a block Witnesses: composed of disintegrated cori in the form GLADYS WAL'roN, of chips and shavings coated with melted l EDNA J. Goeman. 

